Some studies have suggested an association between yawning and empathy, but this new research found that contagious yawning may decrease with age and is not strongly associated with empathy, tiredness or energy levels. Those benefits enhance life <i>off</i> the field, too. The remarkable improvements in aerobic fitness and muscle strength make it easier for the players to live an active life and overcome the physical challenges of everyday life such as climbing stairs, shopping, cycling and gardening. This benefits not only the players themselves, but also their families and friends, Krustrup noted. The researchers interviewed doctors caring for more than 1,000 elderly patients at two Midwestern hospitals who needed to make at least one major medical decision within 48 hours of being hospitalized, <i>NBC News</i> reported.

However, there was an overall decline in the use of both licit and illicit drugs among black high school seniors from the mid 1970s through the early 1990s alongside the fall of cigarette use, said Oredein, who is also an adjunct professor of health and nutrition sciences at Montclair State University. Gao said it wasn't clear why only men benefited from the extra flavonoid intake, but he noted that other studies have also found differences between men and women. Gao said it's not clear if there's a biological mechanism causing these differences, or another factor. The study included nearly 800 people, aged 17 to 24, who dated or lived with someone. The researchers focused on two specific relationship patterns: breaking up and getting back together, and sex with an ex, which refers to couples who break up but still have sex. Changes in diet and levels of physical activity underlie the recent increase in obesity; however, some people gain weight more easily than others, study author Sadaf Farooqi, of the University of Cambridge, noted in a journal news release. This variation between people is largely influenced by genetic factors. The discovery of a new obesity gene, KSR2, demonstrates that genes can contribute to obesity by reducing metabolic rate -- how well the body burns calories.